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author | JoramWilander <jwawilander@gmail.com> | 2018-07-10 15:01:43 -0400 |
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committer | JoramWilander <jwawilander@gmail.com> | 2018-07-10 15:01:43 -0400 |
commit | 6c7dc2d29ccac5f9925402f6be1a4c2a3c46c005 (patch) | |
tree | 5564a47257bf6e85aaef711980c5b0fcb4d07dcc /vendor/google.golang.org/grpc/call.go | |
parent | c042ffa460296587579aff54b157a5109e022f7e (diff) | |
parent | 1e1a5e5e85240f25c4faddcb24c5a29a915fe6e4 (diff) | |
download | chat-6c7dc2d29ccac5f9925402f6be1a4c2a3c46c005.tar.gz chat-6c7dc2d29ccac5f9925402f6be1a4c2a3c46c005.tar.bz2 chat-6c7dc2d29ccac5f9925402f6be1a4c2a3c46c005.zip |
Merge branch 'plugins-2'
Diffstat (limited to 'vendor/google.golang.org/grpc/call.go')
-rw-r--r-- | vendor/google.golang.org/grpc/call.go | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/vendor/google.golang.org/grpc/call.go b/vendor/google.golang.org/grpc/call.go new file mode 100644 index 000000000..f73b7d552 --- /dev/null +++ b/vendor/google.golang.org/grpc/call.go @@ -0,0 +1,93 @@ +/* + * + * Copyright 2014 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package grpc + +import ( + "golang.org/x/net/context" +) + +// Invoke sends the RPC request on the wire and returns after response is +// received. This is typically called by generated code. +// +// All errors returned by Invoke are compatible with the status package. +func (cc *ClientConn) Invoke(ctx context.Context, method string, args, reply interface{}, opts ...CallOption) error { + // allow interceptor to see all applicable call options, which means those + // configured as defaults from dial option as well as per-call options + opts = combine(cc.dopts.callOptions, opts) + + if cc.dopts.unaryInt != nil { + return cc.dopts.unaryInt(ctx, method, args, reply, cc, invoke, opts...) + } + return invoke(ctx, method, args, reply, cc, opts...) +} + +func combine(o1 []CallOption, o2 []CallOption) []CallOption { + // we don't use append because o1 could have extra capacity whose + // elements would be overwritten, which could cause inadvertent + // sharing (and race connditions) between concurrent calls + if len(o1) == 0 { + return o2 + } else if len(o2) == 0 { + return o1 + } + ret := make([]CallOption, len(o1)+len(o2)) + copy(ret, o1) + copy(ret[len(o1):], o2) + return ret +} + +// Invoke sends the RPC request on the wire and returns after response is +// received. This is typically called by generated code. +// +// DEPRECATED: Use ClientConn.Invoke instead. +func Invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) error { + return cc.Invoke(ctx, method, args, reply, opts...) +} + +var unaryStreamDesc = &StreamDesc{ServerStreams: false, ClientStreams: false} + +func invoke(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error { + // TODO: implement retries in clientStream and make this simply + // newClientStream, SendMsg, RecvMsg. + firstAttempt := true + for { + csInt, err := newClientStream(ctx, unaryStreamDesc, cc, method, opts...) + if err != nil { + return err + } + cs := csInt.(*clientStream) + if err := cs.SendMsg(req); err != nil { + if !cs.c.failFast && cs.attempt.s.Unprocessed() && firstAttempt { + // TODO: Add a field to header for grpc-transparent-retry-attempts + firstAttempt = false + continue + } + return err + } + if err := cs.RecvMsg(reply); err != nil { + if !cs.c.failFast && cs.attempt.s.Unprocessed() && firstAttempt { + // TODO: Add a field to header for grpc-transparent-retry-attempts + firstAttempt = false + continue + } + return err + } + return nil + } +} |